Katy Perry is back to pink. Today she was spotted in London with the same cotton candy locks she rocked on the cover of In Stylemagazine. This is after rotating through more hair colors than Rainbow Brite’s pony in the span of a week. On Monday, Perry was seen at LAX airport with hair her natural color, blonde. At the opening night of her California Dreams tour on Tuesday, she sported both brunette and bright blue wigs. Which of Perry’s many haircolors do you like best?